Option expedition
Private submmand1_click ()
Call LocklistViewhead (listview1.hwnd)
End Sub
Private sub fascist2_click ()
Call unlockhead (ListView1.hwnd)
End Sub
Private sub flow_load ()
DIM I as long
Listview1.view = 3
Listview1.columnheaders.add,, "asdf", listview1.width / 3
Listview1.columnheaders.add,, "qwre", listview1.width / 3
Listview1.columnheaders.add,, ".......", listview1.width / 3
End Sub
Option expedition
Public Type NMHDR
HWndfrom as long
IDFROM As Long
Code as long
End Type
Public Declare Function SetWindowlong Lib "User32" Alias "SetWindowlonga" (Byval Nindex As Long, Byval Dwnewlong As Long) As long
Public Declare Sub CopyMemory Lib "kernel32" Alias "RTLmoveMemory" (Destination As Any, Source As Any, Byval length As long)
Public Declare Function CallWindowProc LIB "User32" Alias "CallWindowProca" (Byval Hwndfunc As Long, Byval Hwnd As Long, Byval Msg As Long, Byval WParam As Long) As long
Public const gwl_Wndproc = (-4)
Public const wm_notify = & h4e
Public const hdn_first = -300
Public const hdn_dividerdblclicka = HDN_First - 5
Public const hdn_dividerdblclickw = hdn_first - 25
Public const hdn_begintracka = hdn_first - 6
Public const hdn_begintrackw = hdn_first - 26
Private LPPREVWNDFUNC AS Long
Public Function WindowProc (Byval Hwnd As Long, Byval WParam As Long, BYVAL LPARAM As long) As long
SELECT CASE UMSG
Case WM_Notify
DIM X as nmhdr
CopyMemory X, ByVal Lparam, Len (x)
IF x.code = hdn_begintracka or x.code = hdn_begintrackw or _
X.code = hdn_dividerdblclicka or _
X.code = hdn_dividerdblclickw thenwindowproc = 1
EXIT FUNCTION
END IF
End SELECT
WindowProc = CallWindowProc (lpprevwndfunc, hwnd, umsg, wparam, lparam)
END FUNCTION
Public Sub LocklistViewhead (Byval Hwnd As Long)
LPPREVWNDFUNC = SETWINDOWLONG (HWND, GWL_WNDPROC, Addressof WINDOWPROC)
End Sub
Public Sub Unlockhead (Byval Hwnd As Long)
SetWindowlong HWnd, GWL_WndProc, LPPREVWNDFUNC
End Sub
